./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 21:52:02,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 21:52:02,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 21:52:02,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 21:52:02,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 21:52:02,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 21:52:02,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 21:52:02,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 21:52:02,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 21:52:02,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 21:52:02,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 21:52:02,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 21:52:02,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 21:52:02,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 21:52:02,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 21:52:02,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 21:52:02,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 21:52:02,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 21:52:02,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 21:52:02,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 21:52:02,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 21:52:02,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 21:52:02,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 21:52:02,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 21:52:02,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 21:52:02,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 21:52:02,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 21:52:02,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 21:52:02,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 21:52:02,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 21:52:02,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 21:52:02,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 21:52:02,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 21:52:02,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 21:52:02,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 21:52:02,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 21:52:02,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 21:52:02,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 21:52:02,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 21:52:02,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 21:52:02,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 21:52:02,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 21:52:03,011 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 21:52:03,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 21:52:03,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 21:52:03,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 21:52:03,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 21:52:03,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 21:52:03,013 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 21:52:03,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 21:52:03,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 21:52:03,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 21:52:03,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 21:52:03,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 21:52:03,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 21:52:03,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 21:52:03,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 21:52:03,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 21:52:03,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 21:52:03,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 21:52:03,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 21:52:03,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:52:03,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 21:52:03,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 21:52:03,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 21:52:03,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-03 21:52:03,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 21:52:03,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 21:52:03,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 21:52:03,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 21:52:03,228 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 21:52:03,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-03 21:52:03,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae3542c/c373b87672ab4f22a0825b27e5082095/FLAG40ae3d54e [2021-11-03 21:52:03,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 21:52:03,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-03 21:52:03,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae3542c/c373b87672ab4f22a0825b27e5082095/FLAG40ae3d54e [2021-11-03 21:52:04,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ae3542c/c373b87672ab4f22a0825b27e5082095 [2021-11-03 21:52:04,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 21:52:04,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 21:52:04,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 21:52:04,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 21:52:04,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 21:52:04,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:52:04" (1/1) ... [2021-11-03 21:52:04,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b357d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:04, skipping insertion in model container [2021-11-03 21:52:04,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:52:04" (1/1) ... [2021-11-03 21:52:04,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 21:52:04,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 21:52:04,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-03 21:52:04,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-03 21:52:04,621 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:52:04,626 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:52:05,058 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:52:05,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:52:05,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:52:05,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:52:05,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:52:05,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:52:05,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:52:05,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:52:05,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:52:05,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:52:05,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:52:05,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:52:05,487 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 21:52:05,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-03 21:52:05,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-03 21:52:05,507 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:52:05,510 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:52:05,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:52:05,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:52:05,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:52:05,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:52:05,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:52:05,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:52:05,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:52:05,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:52:05,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:52:05,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:52:05,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:52:05,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:52:05,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:52:05,808 INFO L208 MainTranslator]: Completed translation [2021-11-03 21:52:05,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05 WrapperNode [2021-11-03 21:52:05,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 21:52:05,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 21:52:05,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 21:52:05,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 21:52:05,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:05,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:05,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 21:52:05,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 21:52:05,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 21:52:05,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 21:52:06,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 21:52:06,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 21:52:06,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 21:52:06,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 21:52:06,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (1/1) ... [2021-11-03 21:52:06,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:52:06,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:06,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 21:52:06,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 21:52:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 21:52:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 21:52:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 21:52:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 21:52:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 21:52:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 21:52:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 21:52:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 21:52:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 21:52:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 21:52:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 21:52:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 21:52:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 21:52:10,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 21:52:10,042 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-03 21:52:10,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:52:10 BoogieIcfgContainer [2021-11-03 21:52:10,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 21:52:10,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 21:52:10,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 21:52:10,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 21:52:10,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:52:04" (1/3) ... [2021-11-03 21:52:10,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb1f472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:52:10, skipping insertion in model container [2021-11-03 21:52:10,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:52:05" (2/3) ... [2021-11-03 21:52:10,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb1f472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:52:10, skipping insertion in model container [2021-11-03 21:52:10,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:52:10" (3/3) ... [2021-11-03 21:52:10,051 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-03 21:52:10,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 21:52:10,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-03 21:52:10,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 21:52:10,091 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 21:52:10,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-03 21:52:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:52:10,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:10,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:10,111 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:10,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-03 21:52:10,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:10,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031625960] [2021-11-03 21:52:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:10,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:10,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:10,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031625960] [2021-11-03 21:52:10,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031625960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:10,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:10,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 21:52:10,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739070137] [2021-11-03 21:52:10,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:10,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 21:52:10,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:10,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 21:52:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:52:10,576 INFO L87 Difference]: Start difference. First operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:12,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:14,512 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-03 21:52:14,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 21:52:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:52:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:14,524 INFO L225 Difference]: With dead ends: 694 [2021-11-03 21:52:14,524 INFO L226 Difference]: Without dead ends: 341 [2021-11-03 21:52:14,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:52:14,531 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3440.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3835.46ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:14,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 431 Unknown, 0 Unchecked, 6.91ms Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 3835.46ms Time] [2021-11-03 21:52:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-03 21:52:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-03 21:52:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 340 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-03 21:52:14,570 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-03 21:52:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:14,570 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-03 21:52:14,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-03 21:52:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:52:14,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:14,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:14,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 21:52:14,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-03 21:52:14,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:14,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295719097] [2021-11-03 21:52:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:14,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:14,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:14,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295719097] [2021-11-03 21:52:14,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295719097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:14,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:14,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 21:52:14,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39585971] [2021-11-03 21:52:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 21:52:14,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 21:52:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:52:14,774 INFO L87 Difference]: Start difference. First operand 341 states and 419 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:16,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:18,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:21,547 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-03 21:52:21,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 21:52:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:52:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:21,549 INFO L225 Difference]: With dead ends: 669 [2021-11-03 21:52:21,549 INFO L226 Difference]: Without dead ends: 342 [2021-11-03 21:52:21,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:52:21,551 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5968.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6684.48ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:21,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 837 Unknown, 0 Unchecked, 14.68ms Time], IncrementalHoareTripleChecker [0 Valid, 836 Invalid, 1 Unknown, 0 Unchecked, 6684.48ms Time] [2021-11-03 21:52:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-03 21:52:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-03 21:52:21,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 341 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-03 21:52:21,573 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-03 21:52:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:21,573 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-03 21:52:21,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-03 21:52:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:52:21,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:21,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:21,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 21:52:21,576 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:21,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-03 21:52:21,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:21,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845644116] [2021-11-03 21:52:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:21,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:21,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:21,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845644116] [2021-11-03 21:52:21,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845644116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:21,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:21,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 21:52:21,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436530169] [2021-11-03 21:52:21,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:21,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:52:21,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:21,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:52:21,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:52:21,797 INFO L87 Difference]: Start difference. First operand 342 states and 420 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:23,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:25,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:27,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:30,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:30,889 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2021-11-03 21:52:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 21:52:30,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:52:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:30,891 INFO L225 Difference]: With dead ends: 652 [2021-11-03 21:52:30,891 INFO L226 Difference]: Without dead ends: 342 [2021-11-03 21:52:30,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.24ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:30,892 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 485 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7948.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.11ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8982.00ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:30,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 0 Invalid, 755 Unknown, 0 Unchecked, 15.11ms Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 8982.00ms Time] [2021-11-03 21:52:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-03 21:52:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-03 21:52:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 341 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-03 21:52:30,904 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 34 [2021-11-03 21:52:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:30,904 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-03 21:52:30,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-03 21:52:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 21:52:30,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:30,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:30,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 21:52:30,906 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1339226978, now seen corresponding path program 1 times [2021-11-03 21:52:30,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:30,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230324442] [2021-11-03 21:52:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:30,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:30,962 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:30,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107419459] [2021-11-03 21:52:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:30,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:30,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:30,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:30,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 21:52:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:31,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 21:52:31,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:31,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:31,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:31,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230324442] [2021-11-03 21:52:31,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:31,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107419459] [2021-11-03 21:52:31,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107419459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:31,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:31,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 21:52:31,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003596588] [2021-11-03 21:52:31,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:31,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:52:31,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:52:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:52:31,843 INFO L87 Difference]: Start difference. First operand 342 states and 417 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:33,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:38,586 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2021-11-03 21:52:38,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:52:38,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 21:52:38,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:38,592 INFO L225 Difference]: With dead ends: 713 [2021-11-03 21:52:38,592 INFO L226 Difference]: Without dead ends: 402 [2021-11-03 21:52:38,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:38,596 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5857.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.01ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6622.32ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:38,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 1345 Unknown, 0 Unchecked, 13.01ms Time], IncrementalHoareTripleChecker [45 Valid, 1299 Invalid, 1 Unknown, 0 Unchecked, 6622.32ms Time] [2021-11-03 21:52:38,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-03 21:52:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 366. [2021-11-03 21:52:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 365 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 441 transitions. [2021-11-03 21:52:38,607 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 441 transitions. Word has length 50 [2021-11-03 21:52:38,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:38,608 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 441 transitions. [2021-11-03 21:52:38,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:38,608 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 441 transitions. [2021-11-03 21:52:38,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 21:52:38,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:38,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:38,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 21:52:38,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:38,828 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -521578528, now seen corresponding path program 1 times [2021-11-03 21:52:38,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:38,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745094381] [2021-11-03 21:52:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:38,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:38,912 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:38,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78990945] [2021-11-03 21:52:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:38,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:38,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:38,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 21:52:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:39,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 21:52:39,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:40,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:40,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:40,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745094381] [2021-11-03 21:52:40,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:40,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78990945] [2021-11-03 21:52:40,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78990945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:40,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:40,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:52:40,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328765652] [2021-11-03 21:52:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:40,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 21:52:40,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 21:52:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 21:52:40,058 INFO L87 Difference]: Start difference. First operand 366 states and 441 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:42,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:44,800 INFO L93 Difference]: Finished difference Result 657 states and 790 transitions. [2021-11-03 21:52:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:52:44,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 21:52:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:44,802 INFO L225 Difference]: With dead ends: 657 [2021-11-03 21:52:44,802 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:52:44,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 225.86ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 21:52:44,803 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1395 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3858.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.12ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4514.00ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:44,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 0 Invalid, 620 Unknown, 0 Unchecked, 18.12ms Time], IncrementalHoareTripleChecker [21 Valid, 598 Invalid, 1 Unknown, 0 Unchecked, 4514.00ms Time] [2021-11-03 21:52:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:52:44,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:52:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2536023054755043) internal successors, (435), 365 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2021-11-03 21:52:44,812 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 50 [2021-11-03 21:52:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2021-11-03 21:52:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2021-11-03 21:52:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 21:52:44,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:44,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:44,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 21:52:45,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:45,027 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:45,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:45,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1101114756, now seen corresponding path program 1 times [2021-11-03 21:52:45,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:45,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425163427] [2021-11-03 21:52:45,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:45,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:45,101 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:45,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613640677] [2021-11-03 21:52:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:45,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:45,105 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:45,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 21:52:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:45,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 21:52:45,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:46,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:46,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:46,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425163427] [2021-11-03 21:52:46,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:46,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613640677] [2021-11-03 21:52:46,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613640677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:46,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:46,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 21:52:46,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340019268] [2021-11-03 21:52:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:46,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 21:52:46,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 21:52:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:52:46,358 INFO L87 Difference]: Start difference. First operand 366 states and 435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:48,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:50,875 INFO L93 Difference]: Finished difference Result 595 states and 698 transitions. [2021-11-03 21:52:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:52:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 21:52:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:50,877 INFO L225 Difference]: With dead ends: 595 [2021-11-03 21:52:50,878 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:52:50,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 265.52ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 21:52:50,878 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1796 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3660.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.53ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4295.54ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:50,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1796 Valid, 0 Invalid, 590 Unknown, 0 Unchecked, 12.53ms Time], IncrementalHoareTripleChecker [54 Valid, 535 Invalid, 1 Unknown, 0 Unchecked, 4295.54ms Time] [2021-11-03 21:52:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:52:50,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:52:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.244956772334294) internal successors, (432), 365 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2021-11-03 21:52:50,890 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 58 [2021-11-03 21:52:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:50,890 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2021-11-03 21:52:50,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2021-11-03 21:52:50,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 21:52:50,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:50,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:50,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 21:52:51,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:51,107 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:52:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash -997775264, now seen corresponding path program 1 times [2021-11-03 21:52:51,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:51,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838677094] [2021-11-03 21:52:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:51,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:51,169 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:51,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876086826] [2021-11-03 21:52:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:51,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:51,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:51,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:51,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 21:52:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:51,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 21:52:51,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:52,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:52,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:52,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838677094] [2021-11-03 21:52:52,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:52,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876086826] [2021-11-03 21:52:52,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876086826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:52,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:52,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:52:52,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672285751] [2021-11-03 21:52:52,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:52,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:52:52,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:52,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:52:52,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:52,076 INFO L87 Difference]: Start difference. First operand 366 states and 432 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:52:54,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:53:00,900 INFO L93 Difference]: Finished difference Result 864 states and 1013 transitions. [2021-11-03 21:53:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:53:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-03 21:53:00,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:53:00,902 INFO L225 Difference]: With dead ends: 864 [2021-11-03 21:53:00,902 INFO L226 Difference]: Without dead ends: 630 [2021-11-03 21:53:00,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.48ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:53:00,903 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 581 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7750.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.84ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8639.33ms IncrementalHoareTripleChecker+Time [2021-11-03 21:53:00,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 0 Invalid, 2098 Unknown, 0 Unchecked, 24.84ms Time], IncrementalHoareTripleChecker [2 Valid, 2095 Invalid, 1 Unknown, 0 Unchecked, 8639.33ms Time] [2021-11-03 21:53:00,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-03 21:53:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 369. [2021-11-03 21:53:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 350 states have (on average 1.2428571428571429) internal successors, (435), 368 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:53:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 435 transitions. [2021-11-03 21:53:00,913 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 435 transitions. Word has length 66 [2021-11-03 21:53:00,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:53:00,913 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 435 transitions. [2021-11-03 21:53:00,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:53:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 435 transitions. [2021-11-03 21:53:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 21:53:00,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:53:00,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:53:00,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 21:53:01,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:53:01,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:53:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:53:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -843218652, now seen corresponding path program 1 times [2021-11-03 21:53:01,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:53:01,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269075527] [2021-11-03 21:53:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:01,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:53:01,203 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:53:01,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107078813] [2021-11-03 21:53:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:01,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:53:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:53:01,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:53:01,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 21:56:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:46,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 248 conjunts are in the unsatisfiable core [2021-11-03 21:56:46,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:46,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 21:56:46,902 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 21:56:46,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-03 21:56:46,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 21:56:46,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-03 21:56:47,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-03 21:56:47,334 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 21:56:47,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-03 21:56:47,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:56:47,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-03 21:56:49,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:56:49,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269075527] [2021-11-03 21:56:49,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:56:49,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107078813] [2021-11-03 21:56:49,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base|] [2021-11-03 21:56:49,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:49,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 21:56:49,961 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-03 21:56:49,961 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 21:56:49,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 19 remaining) [2021-11-03 21:56:49,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (17 of 19 remaining) [2021-11-03 21:56:49,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (16 of 19 remaining) [2021-11-03 21:56:49,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (15 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (14 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (13 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (12 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (11 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (10 of 19 remaining) [2021-11-03 21:56:49,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (9 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (8 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (7 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (6 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (5 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (4 of 19 remaining) [2021-11-03 21:56:49,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (3 of 19 remaining) [2021-11-03 21:56:49,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (2 of 19 remaining) [2021-11-03 21:56:49,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (1 of 19 remaining) [2021-11-03 21:56:49,972 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (0 of 19 remaining) [2021-11-03 21:56:50,176 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-03 21:56:50,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 21:56:50,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:56:50,215 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:56:50,217 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 21:56:50,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 09:56:50 BoogieIcfgContainer [2021-11-03 21:56:50,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 21:56:50,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 21:56:50,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 21:56:50,270 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 21:56:50,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:52:10" (3/4) ... [2021-11-03 21:56:50,273 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 21:56:50,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 21:56:50,274 INFO L158 Benchmark]: Toolchain (without parser) took 285972.23ms. Allocated memory was 117.4MB in the beginning and 513.8MB in the end (delta: 396.4MB). Free memory was 80.2MB in the beginning and 273.6MB in the end (delta: -193.4MB). Peak memory consumption was 203.6MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,274 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 21:56:50,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1504.55ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.9MB in the beginning and 108.3MB in the end (delta: -28.4MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 183.95ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 92.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,275 INFO L158 Benchmark]: Boogie Preprocessor took 116.36ms. Allocated memory is still 159.4MB. Free memory was 92.8MB in the beginning and 81.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,276 INFO L158 Benchmark]: RCFGBuilder took 3933.84ms. Allocated memory was 159.4MB in the beginning and 427.8MB in the end (delta: 268.4MB). Free memory was 81.0MB in the beginning and 231.2MB in the end (delta: -150.2MB). Peak memory consumption was 232.6MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,276 INFO L158 Benchmark]: TraceAbstraction took 280221.72ms. Allocated memory was 427.8MB in the beginning and 513.8MB in the end (delta: 86.0MB). Free memory was 230.1MB in the beginning and 273.6MB in the end (delta: -43.4MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-11-03 21:56:50,276 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 513.8MB. Free memory is still 273.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 21:56:50,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1504.55ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.9MB in the beginning and 108.3MB in the end (delta: -28.4MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 183.95ms. Allocated memory is still 159.4MB. Free memory was 108.3MB in the beginning and 92.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.36ms. Allocated memory is still 159.4MB. Free memory was 92.8MB in the beginning and 81.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3933.84ms. Allocated memory was 159.4MB in the beginning and 427.8MB in the end (delta: 268.4MB). Free memory was 81.0MB in the beginning and 231.2MB in the end (delta: -150.2MB). Peak memory consumption was 232.6MB. Max. memory is 16.1GB. * TraceAbstraction took 280221.72ms. Allocated memory was 427.8MB in the beginning and 513.8MB in the end (delta: 86.0MB). Free memory was 230.1MB in the beginning and 273.6MB in the end (delta: -43.4MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 513.8MB. Free memory is still 273.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7792. Possible FailurePath: [L2762-L2767] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7359] static __thread int tl_last_error = 0; [L7791-L7939] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7942-L7945] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7947-L7956] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7958-L7961] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7963-L7967] static _Bool s_common_library_initialized = 0 ; [L7981] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7005] EXPR list->item_size [L7004-L7005] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L7008] EXPR list->length [L7007-L7008] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L7009] return item_size_is_bounded && length_is_bounded; [L211] COND FALSE !(!cond) [L7013] EXPR list->current_size [L7013] list->current_size == 0 && list->length == 0 [L7013] EXPR list->length [L7013] list->current_size == 0 && list->length == 0 [L7013] COND TRUE list->current_size == 0 && list->length == 0 [L7014] list->data [L211] COND FALSE !(!cond) [L2786] return &s_can_fail_allocator_static; [L7017] list->alloc = can_fail_allocator() [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7989] struct aws_array_list old = list; [L7990] struct store_byte_from_buffer old_byte; [L7991] list.data [L7991] list.current_size [L7183] COND FALSE !(size > 0 && array && storage) [L7994] size_t index; [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7518] size_t necessary_size; [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7417] size_t index_inc; [L249] unsigned long c; [L250] return __builtin_uaddl_overflow(a, b, &c); [L250] return __builtin_uaddl_overflow(a, b, &c); [L2540] COND TRUE __CPROVER_overflow_plus(a, b) [L7366] tl_last_error = err [L1998] return (-1); [L2541] return aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED); [L2615] return aws_add_u64_checked(a, b, (uint64_t *)r); [L7418] COND TRUE aws_add_size_checked(index, 1, &index_inc) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 349 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 280131.09ms, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 20.85ms, AutomataDifference: 44704.12ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 9.66ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 4344 SdHoareTripleChecker+Valid, 43573.13ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4344 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 38485.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3016 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6541 IncrementalHoareTripleChecker+Invalid, 6676 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 0 mSDtfsCounter, 6541 mSolverCounterSat, 105.20ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 722.21ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 94.56ms AutomataMinimizationTime, 7 MinimizatonAttempts, 297 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 603.83ms SsaConstructionTime, 227068.98ms SatisfiabilityAnalysisTime, 5606.91ms InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 17 NumberOfNonLiveVariables, 13554 ConjunctsInSsa, 276 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 21:56:50,508 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-03 21:56:50,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 21:56:51,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 21:56:51,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 21:56:51,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 21:56:51,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 21:56:51,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 21:56:51,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 21:56:51,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 21:56:51,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 21:56:51,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 21:56:51,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 21:56:51,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 21:56:52,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 21:56:52,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 21:56:52,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 21:56:52,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 21:56:52,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 21:56:52,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 21:56:52,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 21:56:52,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 21:56:52,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 21:56:52,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 21:56:52,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 21:56:52,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 21:56:52,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 21:56:52,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 21:56:52,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 21:56:52,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 21:56:52,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 21:56:52,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 21:56:52,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 21:56:52,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 21:56:52,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 21:56:52,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 21:56:52,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 21:56:52,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 21:56:52,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 21:56:52,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 21:56:52,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 21:56:52,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 21:56:52,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 21:56:52,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-03 21:56:52,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 21:56:52,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 21:56:52,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 21:56:52,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 21:56:52,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 21:56:52,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 21:56:52,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 21:56:52,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 21:56:52,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:56:52,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-03 21:56:52,060 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 21:56:52,061 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-03 21:56:52,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 21:56:52,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 21:56:52,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 21:56:52,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 21:56:52,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 21:56:52,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-03 21:56:52,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc72b7/abbd40efeccf4e409c16c69a5d530b18/FLAG8a720dcc5 [2021-11-03 21:56:53,061 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 21:56:53,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-03 21:56:53,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc72b7/abbd40efeccf4e409c16c69a5d530b18/FLAG8a720dcc5 [2021-11-03 21:56:53,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46cc72b7/abbd40efeccf4e409c16c69a5d530b18 [2021-11-03 21:56:53,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 21:56:53,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 21:56:53,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 21:56:53,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 21:56:53,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 21:56:53,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:56:53" (1/1) ... [2021-11-03 21:56:53,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4cfeb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:53, skipping insertion in model container [2021-11-03 21:56:53,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:56:53" (1/1) ... [2021-11-03 21:56:53,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 21:56:53,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 21:56:53,798 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-03 21:56:53,804 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-03 21:56:53,823 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:56:53,829 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:56:54,304 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:56:54,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:56:54,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:56:54,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:56:54,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:56:54,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:56:54,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:56:54,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:56:54,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:56:54,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:56:54,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:56:54,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:56:54,774 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 21:56:54,792 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2021-11-03 21:56:54,800 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2021-11-03 21:56:54,802 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:56:54,804 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:56:54,835 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:56:54,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:56:54,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:56:54,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:56:54,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:56:54,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:56:54,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:56:54,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:56:54,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:56:54,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:56:54,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:56:54,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:56:54,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:56:55,155 INFO L208 MainTranslator]: Completed translation [2021-11-03 21:56:55,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55 WrapperNode [2021-11-03 21:56:55,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 21:56:55,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 21:56:55,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 21:56:55,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 21:56:55,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 21:56:55,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 21:56:55,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 21:56:55,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 21:56:55,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 21:56:55,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 21:56:55,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 21:56:55,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 21:56:55,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (1/1) ... [2021-11-03 21:56:55,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:56:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:56:55,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 21:56:55,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 21:56:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 21:56:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 21:56:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 21:56:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 21:56:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 21:56:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 21:56:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 21:56:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 21:56:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 21:56:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 21:56:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 21:56:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 21:56:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 21:56:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 21:56:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 21:56:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 21:56:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 21:57:01,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 21:57:01,286 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-03 21:57:01,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:57:01 BoogieIcfgContainer [2021-11-03 21:57:01,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 21:57:01,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 21:57:01,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 21:57:01,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 21:57:01,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:56:53" (1/3) ... [2021-11-03 21:57:01,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c12ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:57:01, skipping insertion in model container [2021-11-03 21:57:01,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:56:55" (2/3) ... [2021-11-03 21:57:01,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c12ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:57:01, skipping insertion in model container [2021-11-03 21:57:01,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:57:01" (3/3) ... [2021-11-03 21:57:01,294 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-03 21:57:01,297 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 21:57:01,297 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-03 21:57:01,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 21:57:01,332 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 21:57:01,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-03 21:57:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:57:01,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:01,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:01,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:57:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-03 21:57:01,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:01,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667676887] [2021-11-03 21:57:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:01,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:01,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:01,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:01,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 21:57:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:57:03,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 21:57:03,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:57:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:03,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:57:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:03,762 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:57:03,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667676887] [2021-11-03 21:57:03,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667676887] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:57:03,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:57:03,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 21:57:03,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769701055] [2021-11-03 21:57:03,765 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:57:03,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 21:57:03,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:57:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 21:57:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:57:03,787 INFO L87 Difference]: Start difference. First operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:06,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:57:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:57:08,865 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-03 21:57:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 21:57:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:57:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:57:08,878 INFO L225 Difference]: With dead ends: 694 [2021-11-03 21:57:08,880 INFO L226 Difference]: Without dead ends: 341 [2021-11-03 21:57:08,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.15ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:57:08,885 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4582.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4981.80ms IncrementalHoareTripleChecker+Time [2021-11-03 21:57:08,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 431 Unknown, 0 Unchecked, 6.45ms Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 4981.80ms Time] [2021-11-03 21:57:08,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-03 21:57:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-03 21:57:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 340 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-03 21:57:08,932 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-03 21:57:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:57:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-03 21:57:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-03 21:57:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:57:08,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:08,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:08,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 21:57:09,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:57:09,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:57:09,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-03 21:57:09,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:09,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789591113] [2021-11-03 21:57:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:09,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:09,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:09,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:09,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 21:57:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:57:11,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 21:57:11,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:57:11,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:11,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:57:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:11,527 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:57:11,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789591113] [2021-11-03 21:57:11,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789591113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:57:11,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:57:11,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 21:57:11,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920719711] [2021-11-03 21:57:11,527 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:57:11,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 21:57:11,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:57:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 21:57:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:57:11,529 INFO L87 Difference]: Start difference. First operand 341 states and 419 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:13,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:57:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:57:17,906 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-03 21:57:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 21:57:17,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:57:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:57:17,910 INFO L225 Difference]: With dead ends: 669 [2021-11-03 21:57:17,910 INFO L226 Difference]: Without dead ends: 342 [2021-11-03 21:57:17,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:57:17,912 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5811.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6301.47ms IncrementalHoareTripleChecker+Time [2021-11-03 21:57:17,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 836 Unknown, 0 Unchecked, 12.58ms Time], IncrementalHoareTripleChecker [0 Valid, 835 Invalid, 1 Unknown, 0 Unchecked, 6301.47ms Time] [2021-11-03 21:57:17,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-03 21:57:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-03 21:57:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 341 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-03 21:57:17,944 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-03 21:57:17,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:57:17,944 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-03 21:57:17,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:17,944 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-03 21:57:17,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 21:57:17,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:17,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:17,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 21:57:18,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:57:18,146 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:57:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-03 21:57:18,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:18,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933673762] [2021-11-03 21:57:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:18,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:18,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:18,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:18,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 21:57:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:57:20,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 21:57:20,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:57:20,719 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 21:57:20,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2021-11-03 21:57:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:20,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:57:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:21,416 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:57:21,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933673762] [2021-11-03 21:57:21,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933673762] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:57:21,416 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:57:21,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 21:57:21,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923030540] [2021-11-03 21:57:21,416 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:57:21,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 21:57:21,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:57:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 21:57:21,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 21:57:21,418 INFO L87 Difference]: Start difference. First operand 342 states and 420 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:23,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:57:51,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:57:51,231 INFO L93 Difference]: Finished difference Result 1043 states and 1273 transitions. [2021-11-03 21:57:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 21:57:51,232 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 21:57:51,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:57:51,234 INFO L225 Difference]: With dead ends: 1043 [2021-11-03 21:57:51,234 INFO L226 Difference]: Without dead ends: 716 [2021-11-03 21:57:51,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1310.50ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-03 21:57:51,236 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1701 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 4382 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25965.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.79ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28745.53ms IncrementalHoareTripleChecker+Time [2021-11-03 21:57:51,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1701 Valid, 0 Invalid, 4411 Unknown, 0 Unchecked, 70.79ms Time], IncrementalHoareTripleChecker [28 Valid, 4382 Invalid, 1 Unknown, 0 Unchecked, 28745.53ms Time] [2021-11-03 21:57:51,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-11-03 21:57:51,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 338. [2021-11-03 21:57:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 319 states have (on average 1.3009404388714734) internal successors, (415), 337 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 415 transitions. [2021-11-03 21:57:51,274 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 415 transitions. Word has length 34 [2021-11-03 21:57:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:57:51,275 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 415 transitions. [2021-11-03 21:57:51,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:51,278 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 415 transitions. [2021-11-03 21:57:51,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 21:57:51,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:51,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:51,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 21:57:51,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:57:51,482 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:57:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1705333650, now seen corresponding path program 1 times [2021-11-03 21:57:51,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:51,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594417683] [2021-11-03 21:57:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:51,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:51,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:51,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:51,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 21:57:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:57:53,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:57:53,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:57:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:53,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:57:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:54,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:57:54,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594417683] [2021-11-03 21:57:54,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594417683] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:57:54,076 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:57:54,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 21:57:54,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786659634] [2021-11-03 21:57:54,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:57:54,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:57:54,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:57:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:57:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:57:54,077 INFO L87 Difference]: Start difference. First operand 338 states and 415 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:57:56,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:58:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:58:00,724 INFO L93 Difference]: Finished difference Result 648 states and 795 transitions. [2021-11-03 21:58:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 21:58:00,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 21:58:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:58:00,725 INFO L225 Difference]: With dead ends: 648 [2021-11-03 21:58:00,725 INFO L226 Difference]: Without dead ends: 338 [2021-11-03 21:58:00,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.84ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:58:00,726 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 478 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6016.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.86ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6545.17ms IncrementalHoareTripleChecker+Time [2021-11-03 21:58:00,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 0 Invalid, 745 Unknown, 0 Unchecked, 9.86ms Time], IncrementalHoareTripleChecker [5 Valid, 739 Invalid, 1 Unknown, 0 Unchecked, 6545.17ms Time] [2021-11-03 21:58:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-11-03 21:58:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2021-11-03 21:58:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 319 states have (on average 1.29153605015674) internal successors, (412), 337 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:00,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 412 transitions. [2021-11-03 21:58:00,735 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 412 transitions. Word has length 37 [2021-11-03 21:58:00,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:58:00,735 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 412 transitions. [2021-11-03 21:58:00,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 412 transitions. [2021-11-03 21:58:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:58:00,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:58:00,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:58:00,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 21:58:00,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:58:00,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:58:00,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:58:00,965 INFO L85 PathProgramCache]: Analyzing trace with hash -472365176, now seen corresponding path program 1 times [2021-11-03 21:58:00,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:58:00,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619762237] [2021-11-03 21:58:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:58:00,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:58:00,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:58:00,970 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:58:00,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 21:58:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:58:03,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 21:58:03,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:58:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:03,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:58:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:03,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:58:03,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619762237] [2021-11-03 21:58:03,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619762237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:58:03,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:58:03,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 21:58:03,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78470027] [2021-11-03 21:58:03,617 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:58:03,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:58:03,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:58:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:58:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:58:03,636 INFO L87 Difference]: Start difference. First operand 338 states and 412 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:05,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:58:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:58:12,040 INFO L93 Difference]: Finished difference Result 709 states and 875 transitions. [2021-11-03 21:58:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:58:12,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-03 21:58:12,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:58:12,059 INFO L225 Difference]: With dead ends: 709 [2021-11-03 21:58:12,059 INFO L226 Difference]: Without dead ends: 398 [2021-11-03 21:58:12,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:58:12,061 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7658.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.31ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8298.41ms IncrementalHoareTripleChecker+Time [2021-11-03 21:58:12,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 1333 Unknown, 0 Unchecked, 10.31ms Time], IncrementalHoareTripleChecker [45 Valid, 1287 Invalid, 1 Unknown, 0 Unchecked, 8298.41ms Time] [2021-11-03 21:58:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-03 21:58:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 362. [2021-11-03 21:58:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 343 states have (on average 1.271137026239067) internal successors, (436), 361 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-03 21:58:12,073 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 53 [2021-11-03 21:58:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:58:12,074 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-03 21:58:12,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-03 21:58:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:58:12,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:58:12,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:58:12,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 21:58:12,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:58:12,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:58:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:58:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 345283274, now seen corresponding path program 1 times [2021-11-03 21:58:12,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:58:12,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410984121] [2021-11-03 21:58:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:58:12,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:58:12,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:58:12,299 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:58:12,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 21:58:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:58:14,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 21:58:14,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:58:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:15,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:58:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:15,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:58:15,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410984121] [2021-11-03 21:58:15,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410984121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:58:15,378 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:58:15,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 21:58:15,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831874748] [2021-11-03 21:58:15,378 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:58:15,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:58:15,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:58:15,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:58:15,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:58:15,379 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:17,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:58:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:58:21,598 INFO L93 Difference]: Finished difference Result 653 states and 785 transitions. [2021-11-03 21:58:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 21:58:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-03 21:58:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:58:21,600 INFO L225 Difference]: With dead ends: 653 [2021-11-03 21:58:21,600 INFO L226 Difference]: Without dead ends: 362 [2021-11-03 21:58:21,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 149.60ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 21:58:21,601 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 982 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5554.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.64ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6056.55ms IncrementalHoareTripleChecker+Time [2021-11-03 21:58:21,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 0 Invalid, 605 Unknown, 0 Unchecked, 9.64ms Time], IncrementalHoareTripleChecker [18 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 6056.55ms Time] [2021-11-03 21:58:21,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-03 21:58:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-03 21:58:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 343 states have (on average 1.2536443148688046) internal successors, (430), 361 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 430 transitions. [2021-11-03 21:58:21,614 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 430 transitions. Word has length 53 [2021-11-03 21:58:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:58:21,614 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 430 transitions. [2021-11-03 21:58:21,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 430 transitions. [2021-11-03 21:58:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 21:58:21,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:58:21,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:58:21,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 21:58:21,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:58:21,835 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:58:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:58:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1110772582, now seen corresponding path program 1 times [2021-11-03 21:58:21,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:58:21,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822303633] [2021-11-03 21:58:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:58:21,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:58:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:58:21,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:58:21,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 21:58:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:58:24,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:58:24,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:58:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:24,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:58:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:24,609 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:58:24,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822303633] [2021-11-03 21:58:24,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822303633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:58:24,612 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:58:24,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 21:58:24,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899427187] [2021-11-03 21:58:24,613 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:58:24,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:58:24,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:58:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:58:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:58:24,614 INFO L87 Difference]: Start difference. First operand 362 states and 430 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:26,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:58:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:58:37,123 INFO L93 Difference]: Finished difference Result 860 states and 1014 transitions. [2021-11-03 21:58:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:58:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 21:58:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:58:37,126 INFO L225 Difference]: With dead ends: 860 [2021-11-03 21:58:37,126 INFO L226 Difference]: Without dead ends: 626 [2021-11-03 21:58:37,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.85ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:58:37,127 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 585 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11264.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.78ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12321.52ms IncrementalHoareTripleChecker+Time [2021-11-03 21:58:37,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 0 Invalid, 2094 Unknown, 0 Unchecked, 13.78ms Time], IncrementalHoareTripleChecker [2 Valid, 2091 Invalid, 1 Unknown, 0 Unchecked, 12321.52ms Time] [2021-11-03 21:58:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-11-03 21:58:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 365. [2021-11-03 21:58:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 346 states have (on average 1.2514450867052023) internal successors, (433), 364 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 433 transitions. [2021-11-03 21:58:37,157 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 433 transitions. Word has length 61 [2021-11-03 21:58:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:58:37,158 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 433 transitions. [2021-11-03 21:58:37,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 433 transitions. [2021-11-03 21:58:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 21:58:37,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:58:37,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:58:37,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 21:58:37,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:58:37,359 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:58:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:58:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -782772822, now seen corresponding path program 1 times [2021-11-03 21:58:37,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:58:37,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879822004] [2021-11-03 21:58:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:58:37,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:58:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:58:37,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:58:37,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 21:58:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:58:39,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 21:58:39,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:58:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:40,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:58:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:58:40,861 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:58:40,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879822004] [2021-11-03 21:58:40,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879822004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:58:40,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:58:40,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 21:58:40,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663629835] [2021-11-03 21:58:40,861 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:58:40,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 21:58:40,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:58:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 21:58:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 21:58:40,862 INFO L87 Difference]: Start difference. First operand 365 states and 433 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:43,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:58:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:58:47,258 INFO L93 Difference]: Finished difference Result 594 states and 696 transitions. [2021-11-03 21:58:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 21:58:47,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-03 21:58:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:58:47,260 INFO L225 Difference]: With dead ends: 594 [2021-11-03 21:58:47,260 INFO L226 Difference]: Without dead ends: 365 [2021-11-03 21:58:47,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 234.58ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 21:58:47,261 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1392 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5660.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.31ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6195.88ms IncrementalHoareTripleChecker+Time [2021-11-03 21:58:47,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 0 Invalid, 563 Unknown, 0 Unchecked, 7.31ms Time], IncrementalHoareTripleChecker [43 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 6195.88ms Time] [2021-11-03 21:58:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-03 21:58:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-03 21:58:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 346 states have (on average 1.2427745664739884) internal successors, (430), 364 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2021-11-03 21:58:47,270 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 63 [2021-11-03 21:58:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:58:47,270 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2021-11-03 21:58:47,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 21:58:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2021-11-03 21:58:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 21:58:47,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:58:47,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:58:47,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 21:58:47,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:58:47,477 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 21:58:47,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:58:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2006556046, now seen corresponding path program 1 times [2021-11-03 21:58:47,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:58:47,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281199329] [2021-11-03 21:58:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:58:47,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:58:47,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:58:47,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:58:47,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process Killed by 15